flutter project not running on ios

Have a previously running app that is no longer running and I have been trying to work this out for weeks. Have got it to a point now where it almost runs but I get the following issues at the last hurdle:

flutter run -v

This appears to successfully build the app and launch it, the screen briefly goes white and then the app closes. The last entries from the terminal output is:

[ +293 ms] ------ Debug phase ------
[        ] Starting debug of 53225g34b4c604fe43a334525340e269626a (D111AP,
iPhone 7 Plus, iphoneos, arm64) a.k.a. 'iPhone' connected through USB...
[ +935 ms] [  0%] Looking up developer disk image
[  +27 ms] [ 95%] Developer disk image mounted successfully
[ +367 ms] [100%] Connecting to remote debug server
[        ] -------------------------
[+1080 ms] (lldb) command source -s 0
'/tmp/1D186BA70/fruitstrap-lldb-prep-cmds-4c604fe43a334525340e269626a'
[        ] Executing commands in
'/tmp/1D186BA70/fruitstrap-lldb-prep-cmds-4c604fe43a334525340e269626a'
[        ] (lldb)     platform select remote-ios --sysroot
'/Users/sjr/Library/Developer/Xcode/iOS DeviceSupport/13.3.1 (17D50)/Symbols'
[        ]   Platform: remote-ios
[        ]  Connected: no
[        ]   SDK Path: "/Users/sjr/Library/Developer/Xcode/iOS
DeviceSupport/13.3.1 (17D50)/Symbols"
[        ] (lldb)     target create
"/Users/sjr/Projects/my_app/build/ios/iphoneos/Runner.app"
[+10050 ms] Current executable set to
'/Users/sjr/Projects/my_app/build/ios/iphoneos/Runner.app' (arm64).
[        ] (lldb)     script
fruitstrap_device_app="/private/var/containers/Bundle/Application/62B3E66E1/Runner.app"
[ +443 ms] (lldb)     script fruitstrap_connect_url="connect://127.0.0.1:49422"
[        ] (lldb)     script fruitstrap_output_path=""
[        ] (lldb)     script fruitstrap_error_path=""
[        ] (lldb)     target modules search-paths add /usr
"/Users/sjr/Library/Developer/Xcode/iOS DeviceSupport/13.3.1
(17D50)/Symbols/usr" /System "/Users/sjr/Library/Developer/Xcode/iOS
DeviceSupport/13.3.1 (17D50)/Symbols/System"
"/private/var/containers/Bundle/Application/62B3E66E1
" "/Users/sjr/Projects/my_app/build/ios/iphoneos"
"/var/containers/Bundle/Application/62B3E66E1"
"/Users/sjr/Projects/my_app/build/ios/iphoneos" /Developer
"/Users/sjr/Library/Developer/Xcode/iOS DeviceSupport/13.3.1
(17D50)/Symbols/Developer"
[  +35 ms] (lldb)     command script import
"/tmp/1D186BA70/fruitstrap_4c604fe43a334525340e269626a.py"
[   +4 ms] (lldb)     command script add -f
fruitstrap_4c604fe43a334525340e269626a.connect_command connect
[        ] (lldb)     command script add -s asynchronous -f
fruitstrap_4c604fe43a334525340e269626a.run_command run
[        ] (lldb)     command script add -s asynchronous -f
fruitstrap_4c604fe43a334525340e269626a.autoexit_command autoexit
[        ] (lldb)     command script add -s asynchronous -f
fruitstrap_4c604fe43a334525340e269626a.safequit_command safequit
[        ] (lldb)     connect
[  +52 ms] (lldb)     run
[ +277 ms] success
[        ] (lldb)     safequit
[ +120 ms] Process 434 detached
[  +48 ms] Application launched on the device. Waiting for observatory port.
[   +4 ms] Checking for advertised Dart observatories...
[+5026 ms] mDNS lookup failed, attempting fallback to reading device log.
[        ] Waiting for observatory port.

And the issue looks different in Xcode (although is quite likely exactly the same issue). Looks like maybe a memory leak? I am not sure how to read this information. I get an error appearing that looks like this:

io.flutter.204.ui (625): signal SIGABRT

And then in the logs beneath I have:

Runner(439,0x1009c5800) malloc: enabling scribbling to detect mods to free blocks

Runner(439,0x1009c5800) malloc: recording malloc and VM allocation stacks using lite mode

2020-03-31 07:54:22.330547+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

2020-03-31 07:54:22.475589+0800 Runner[439:345566] Metal API Validation Enabled

2020-03-31 07:54:22.864937+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

2020-03-31 07:54:22.932713+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

2020-03-31 07:54:22.976036+0800 Runner[439:345823] flutter: Observatory listening on http://127.0.0.1:51027/Wl9caPukKFs=/

2020-03-31 07:54:22.993612+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

2020-03-31 07:54:23.030173+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

Literally hundreds more of this exact section:

2020-03-31 07:54:23.030173+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

And then it continues:

../../third_party/dart/runtime/vm/clustered_snapshot.cc: 68: error: Out of memory.

2020-03-31 07:54:35.497087+0800 Runner[439:346457] version=2.5.0 (Fri Sep 6 20:10:36 2019 +0200) on "ios_arm64"

thread=1245963, isolate=main(0x2cb9de000)

2020-03-31 07:54:35.510204+0800 Runner[439:346457]   pc 0x00000001013019ac fp 0x00000002d76837e0 Dart_DumpNativeStackTrace

2020-03-31 07:54:35.510996+0800 Runner[439:346457]   pc 0x0000000100e94518 fp 0x00000002d7683800 dart::Assert::Fail(char const*, ...)

2020-03-31 07:54:35.511862+0800 Runner[439:346457]   pc 0x0000000100f2969c fp 0x00000002d7683860 dart::FunctionDeserializationCluster::ReadFill(dart::Deserializer*)

2020-03-31 07:54:35.512319+0800 Runner[439:346457]   pc 0x0000000100f2e4ec fp 0x00000002d76839b0 dart::FullSnapshotReader::ReadIsolateSnapshot()

2020-03-31 07:54:35.512738+0800 Runner[439:346457]   pc 0x0000000100f34d88 fp 0x00000002d7683f70 dart::Dart::InitializeIsolate(unsigned char const*, unsigned char const*, unsigned char const*, unsigned char const*, unsigned char const*, long, void*)

2020-03-31 07:54:35.513417+0800 Runner[439:346457]   pc 0x00000001012e8220 fp 0x00000002d7684010 dart::CreateIsolate(dart::IsolateGroup*, char const*, void*, char**)

2020-03-31 07:54:35.514492+0800 Runner[439:346457]   pc 0x0000000100b0ccd4 fp 0x00000002d7684270 flutter::DartIsolate::CreateDartVMAndEmbedderObjectPair(char const*, char const*, char const*, char const*, Dart_IsolateFlags*, std::__1::shared_ptr<flutter::DartIsolate>*, bool, char**)

2020-03-31 07:54:35.515065+0800 Runner[439:346457]   pc 0x0000000100b0c4fc fp 0x00000002d7684450 flutter::DartIsolate::CreateRootIsolate(flutter::Settings const&, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, flutter::TaskRunners, std::__1::unique_ptr<flutter::Window, std::__1::default_delete<flutter::Window> >, fml::WeakPtr<flutter::IOManager>, fml::WeakPtr<flutter::ImageDecoder>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, Dart_IsolateFlags*, std::__1::function<void ()>, std::__1::function<void ()>)

2020-03-31 07:54:35.515707+0800 Runner[439:346457]   pc 0x0000000100b15000 fp 0x00000002d7684720 flutter::RuntimeController::RuntimeController(flutter::RuntimeDelegate&, flutter::DartVM*, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, flutter::TaskRunners, fml::WeakPtr<flutter::IOManager>, fml::WeakPtr<flutter::ImageDecoder>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::function<void (long long)>, flutter::RuntimeController::WindowData, std::__1::function<void ()>, std::__1::function<void ()>)

2020-03-31 07:54:35.516437+0800 Runner[439:346457]   pc 0x0000000100b1b858 fp 0x00000002d7684b50 flutter::Engine::Engine(flutter::Engine::Delegate&, flutter::DartVM&, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, flutter::TaskRunners, flutter::Settings, std::__1::unique_ptr<flutter::Animator, std::__1::default_delete<flutter::Animator> >, fml::WeakPtr<flutter::IOManager>)

2020-03-31 07:54:35.517172+0800 Runner[439:346457]   pc 0x0000000100b2c1d0 fp 0x00000002d7684fe0 std::__1::__function::__func<fml::internal::CopyableLambda<flutter::Shell::CreateShellOnPlatformThread(flutter::DartVMRef, flutter::TaskRunners, flutter::Settings, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, std::__1::function<std::__1::unique_ptr<flutter::PlatformView, std::__1::default_delete<flutter::PlatformView> > (flutter::Shell&)>, std::__1::function<std::__1::unique_ptr<flutter::Rasterizer, std::__1::default_delete<flutter::Rasterizer> > (flutter::Shell&)>)::$_0>, std::__1::allocator<fml::internal::CopyableLambda<flutter::Shell::CreateShellOnPlatformThread(flutter::DartVMRef, flutter::TaskRunners, flutter::Settings, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, std::__1::function<std::__1::unique_ptr<flutter::PlatformView, std::__1::default_delete<flutter::PlatformView> > (flutter::Shell&)>, std::__1::function<std::__1::unique_ptr<flutter::Rasterizer, std::__1::default_delete<flutter::Rasterizer> > (flutter::Shell&)>)::$_0> >, void ()>::operator()()

2020-03-31 07:54:35.518362+0800 Runner[439:346457]   pc 0x0000000100add9e8 fp 0x00000002d7685030 fml::MessageLoopImpl::FlushTasks(fml::FlushType)

2020-03-31 07:54:35.518837+0800 Runner[439:346457]   pc 0x0000000100ae209c fp 0x00000002d7685050 fml::MessageLoopDarwin::OnTimerFire(__CFRunLoopTimer*, fml::MessageLoopDarwin*)

2020-03-31 07:54:35.519148+0800 Runner[439:346457]   pc 0x000000019eb6503c fp 0x00000002d7685060 <redacted>

2020-03-31 07:54:35.519351+0800 Runner[439:346457]   pc 0x000000019eb64d78 fp 0x00000002d7686110 <redacted>

2020-03-31 07:54:35.519583+0800 Runner[439:346457]   pc 0x000000019eb64448 fp 0x00000002d76861a0 <redacted>

So to my untrained eye it looks like it is trying to do this:

2020-03-31 07:54:23.030173+0800 Runner[439:345566] Failed to find snapshot: /private/var/containers/Bundle/Application/E00E6D3690/Runner.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin

Thousands of times until it runs out of memory, but I am not quite sure what this is, or how to begin trying to resolve it.

Source: Ios